The temperature of the room when an air conditioner is left on will depend on several factors, including the initial temperature of the room, the cooling capacity of the air conditioner, the insulation of the room, and the duration the air conditioner has been running.
When an air conditioner is turned on, it works by removing heat from the room and expelling it outside, thereby lowering the temperature. The air conditioner continues to cool the room until it reaches the desired temperature set on the thermostat or until it is turned off.
If the air conditioner is left on for a sufficient amount of time and has the capacity to cool the room adequately, it will gradually reduce the temperature of the room. However, the final temperature reached will depend on factors such as the outdoor temperature, the size of the room, the insulation level, and any heat sources or openings that could affect the cooling efficiency.
It's important to note that air conditioners have a cooling capacity, which is typically measured in British Thermal Units (BTUs) or kilowatts. The cooling capacity determines how much heat the air conditioner can remove from the room per unit of time. If the cooling capacity of the air conditioner is insufficient for the room size or the outdoor temperature is extremely high, it may struggle to cool the room effectively or may not be able to reach the desired temperature.
To determine the specific temperature of a room when an air conditioner is left on, it would be necessary to consider all the aforementioned factors and possibly perform calculations or simulations based on the specific conditions of the room and the air conditioner in use.